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Finding the Third Proportional to 533.63 and 790.31

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Solution

The third proportional to 533.63 and 790.31 is: 1,170.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    533.63 : 790.31 = 790.31 : x
  2. Step 2: Convert to fraction form
    533.63/790.31 = 790.31/x
  3. Step 3: Cross multiply
    533.63x = 790.31 × 790.31
  4. Step 4: Simplify right side
    533.63x = 624,593.85
  5. Step 5: Solve for x
    x = 624,593.85/533.63
  6. Step 6: Final answer
    x = 1,170.47

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.